Upgrade your marine engine's performance with the Mercury Marine 817119-2 55 Amp Alternator, a replacement part designed for MerCruiser stern drive and inboard engines. Engineered for reliability, this Mando alternator with V-belt compatibility delivers consistent power for 4-cylinder, V6, and V8 MerCruiser engines manufactured by General Motors from 1982 to 2016. Built to meet stringent Mercury Marine specifications, it ensures optimal charging for your boat's electrical systems, enhancing durability and performance on the water. Easy to install with common tools, this alternator is a direct replacement for part numbers 817119, 817119-1, 817119A1, 817119A4, and more. Trust Mercury Marine for premium quality and seamless compatibility.